Question

A rectangular sheet of paper has length of 10 cm and a breadth of 7cm. The sheet was folded along its breadth to form a cylinder. Find the surface area of the cylinder that is formed.​

Answer 1

$\huge\boxed{Solution}$

Informations given :

Length of rectangular sheet = 10 cm

Breadth of rectangular sheet = 7 cm

Sheet was folded along its breadth(7 cm) to form a cylinder.

Find :

Surface area of cylinder formed

Formula :

Surface area of cylinder = 2

$2 \: pie \: r(h + r)$

Process:

Circumference of base of cylinder becomes

2πr = 7 cm